1.

Iron metal is produced commercially by reducing iron (III) oxide in iron ore with carbon monoixde :

Answer»

Write down the balanced chemical equation for the above reduction of iron (III) oxide?
Enthalpies of FORMATION for various substance at `25^(@)C` are given in the following table.
`{:(,FeO_(3(g)),CO_(g),Fe_(g),CO2_(g)),(DeltaH_(f)^(@)(KJ//"mol"),-824.2,-110.5,0,-393.5),(S[J//(K."mol")],87.5,197.6,27.3,213.6):}`
Calculate the standard free-energy change for this reaction at `25^(@)`C ?
Is the reaction spontaneous at `25^(@)`C ?
Does the reverse reaction become spontaneous at higher TEMPERATURE? Explain.

Solution :N//A


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